Jam-packed with vitamin A and folic acid, it'll also provide some vitamin C and iron. If your child turns up her nose at spinach, get creative. Dress it up (sprinkle Parmesan cheese on top) or sneak it into her favorite dishes -- baked into lasagna or meat loaf, pureed into tomato sauce, or layered in a sandwich instead of lettuce.
Next-best choice: Edamame, or soy beans, which are loaded with protein, calcium, phosphorus, and vitamin C, plus a little fat. Kids love pushing the nutty-flavored peas out of the pods and into their mouths.
Picky-eater idea: A no-fail way to get 'em to eat the green stuff? Believe it or not, baked into brownies. Visit parents.com for our popular "They'll never know there's spinach in it!" brownie recipe.